Component    
Element 1 2 3 4 Communality
Pb 0.66 -0.223 -0.501 0.296 0.824
Zn 0.429 -0.203 -0.539 0.031 0.517
Ni 0.657 -0.11 -0.47 -0.222 0.714
Co 0.777 -0.192 -0.413 0.205 0.852
Mn 0.609 0.708 0.154 -0.155 0.92
As 0.617 0.696 0.057 -0.196 0.907
Th 0.315 -0.773 0.402 0.124 0.873
Sr 0.006 0.524 0.294 0.69 0.837
V 0.504 -0.373 -0.004 0.007 0.393
Cr -0.069 0.67 0.058 0.665 0.899
Ba 0.592 0.36 0.5 -0.3 0.82
Cu 0.765 0.55 -0.029 -0.05 0.891
Initial Eigen values 4.466 3.726 2.262 1.473  
Percentage of variance (%) 29.77 24.84 15.08 9.823  
Cumulative percentage (%) 29.77 54.61 69.69 79.51  
Table 6: The result principal component analysis for Road Dust in the study area.